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maxonik [38]
3 years ago
9

DeWayne wants to find out what career his fellow middle school students would like to pursue. He plans to collect three samples.

Which statements describe good methods for collecting the samples? Check all that apply.
Interview students at lunch because it is likely that students with different interests will be present.


Interview students in the art club because they are creative and will come up with fun answers.


Interview students in the robotics club because they are focused on academics and concerned about their future.


Interview students in English class because everyone has to take English, and he can reach a variety of students.


Interview students and provide only four choices so that the data does not get complicated.
Mathematics
2 answers:
Dvinal [7]3 years ago
6 0

Answer: Interview students at lunch because it is likely that students with different interests will be present.

Interview students in English class because everyone has to take English, and he can reach a variety of students.


Step-by-step explanation:

From all the given options, only first and the fourth options approach to a variety of students. Rest of others have approach to a particular subject ofr field.

So if DeWayne wants to find out what career his fellow middle school students would like to pursue. So the good methods for collecting the samples are :

Interview students at lunch because it is likely that students with different interests will be present.

Interview students in English class because everyone has to take English, and he can reach a variety of students.

natulia [17]3 years ago
3 0
<span>a. Interview students at lunch because it is likely that students with different interests will be present.

d.</span><span>Interview students in English class because everyone has to take English, and he can reach a variety of students.</span>
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Can someone pls help, I know this is kind of a lot but I’ve been stuck on this for a while now.
Greeley [361]

9514 1404 393

Answer:

  (a, b, c) = (-0.425595, 11.7321, 2.16667)

  f(x) = -0.425595x² +11.7321x +2.16667

  f(1) ≈ 13.5

Step-by-step explanation:

A suitable tool makes short work of this. Most spreadsheets and graphing calculators will do quadratic regression. All you have to do is enter the data and make use of the appropriate built-in functions.

Desmos will do least-squares fitting of almost any function you want to use as a model. It tells you ...

  a = -0.425595

  b = 11.7321

  c = 2.16667

so

  f(x) = -0.425595x² +11.7321x +2.16667

and f(1) ≈ 13.5

_____

<em>Additional comment</em>

Note that a quadratic function doesn't model the data very well if you're trying to extrapolate to times outside the original domain.

3 0
3 years ago
Simplify completely. 10 points (:
zubka84 [21]

Answer:

2y^4√5

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

hope i helped :) !!!!!!!

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8 0
3 years ago
Read 2 more answers
.<br> A. 139<br> B. 147°<br> C. 155<br> D. 157<br> PLEASE HELP ASAAAPP!
enyata [817]

Answer:

\huge\boxed{157 \ \ \text{degrees}}

Step-by-step explanation:

In order to find the value of ∠EFB here, we have to note our angle relationships.

We know that ∠CFE is already 90°. We also know that ∠CFA is 90°. Angle ∠AFB is inside ∠CFA. Since we know the measure of ∠AFB, we can find the measure of ∠BFC.

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Now that we know ∠CFE and ∠BFC, which together make ∠BFE, we can add these angles up.

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3 years ago
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vivado [14]
Hello there!

To find the increasing intervals for this graph just based on the equation, we should find the turning points first.

Take the derivative of f(x)...
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Set f'(x) equal to 0...
0=-2x+3
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This means that the x-value of our turning point is 3/2. Now we need to analyze the equation to figure out the end behavior of this graph as x approaches infinity and negative infinity.
Since the leading coefficient is -1, as x approaches ∞, f(x) approaches -∞ Because the exponent of the leading term is even, the end behavior of f(x) as x approaches -∞ is also -∞.

This means that the interval by which this parabola is increasing is...
(-∞,3/2)

PLEASE DON'T include 3/2 on the increasing interval because it's a turning point. The slope of the tangent line to the turning point is 0 so the graph isn't increasing OR decreasing at this point.

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7 0
3 years ago
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Mama L [17]

Answer

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Step-by-step explanation:

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